Newpowa 100W 12 Volt Monocrystalline Solar Panel 100W Classic 12V Compact Design High Efficiency Module RV Marine Boat Off Grid (100W /Mounts)

For this form factor and use case, these panels are a great price. They are (or seem) solidly made, work as they should, and I think are a good physical shape for many uses. I bought the 2x set and then bought another to create 2 strings in parallel. We have a very shaded property so I put one in an area that gets good coverage in the morning and the other in an area for the afternoon. Paired with a good MPPT solar charger and a battery you have a simple and effective system for off-grid applications for a range of projects. I use a simple lead acid battery setup (because I already had one lying around otherwise I would definitely purchase a small Lifepo4 battery for the same purpose) mostly as a buffer to imperfect weather conditions so I can charge up and run my electronics with any of the billions of products available for 12v systems (car/rv/boat) while the sun is shining and don't generally drain the battery at night (lead acid batteries are so fragile to use that significantly reducses their lifetime -- this is why I say buy a Lifepo4 battery [and make sure the MPPT charge controller you buy supports lifepo4 like a good victron model] if you don't already have one)Any negatives of these panels are just the inherent limitations and realities of solar power -- like not reaching maximum power, etc. There are situations where these panels wouldn't be the best choice -- like if you wanted something that had a USB port directly or different type of native connectors (like DC5521 instead of the MC4) but then you need to look into portable solar panels or pay attention to getting the right adapter for the MC4 cables. If you need a portable panel then you will pay more for the same power and they will be larger for the same wattage but if that's what you're after then I definitely recommend that instead. I have a 100w portable, foldable panel with USB A and C plus multiple DC outputs and I love it for what it does. Just figure out your use case and buy the right product for it.

This panel's compact size is a huge plus. Most of the panels are more rectangular and don't fit on small roofs well. I actually had bought two other panels previously, but didn't end up using them because they were too large for the area of the curved roof on my little trailer. The panel worked well with standard mounts designed for RV roof attachment and I used the pre-drilled holes on the panel for that purpose. The panel started right up and worked fine as soon as it was plugged in.I can't comment about power output versus specs for it since I have it mounted horizontally on the trailer roof, but it does seem to be charging the trailer battery correctly. The quality of the construction of the panel itself seems good.

Very good panels! I would give them 5 stars if they were advertised as 80W instead of 100W, because that's the most they ever produced in real life (20% less than advertised). I know the industry standards are to test the panels in optimum conditions (with an array of highly powered sets of lights). However, the sun never shines like that in real life. It would be nice for a company to be brutally honest for a change... This aside, you can actually count on 80W of power in full sun, delivered with consistency. The silicone on the back is uneven (most likely applied by hand). I've only been using the panels for about one month, so I don't know how well they will hold in time. I hope this company will succeed. I hope they will work out their shipping issues and the other kinks.

I love the smaller size 100w mono cryst panel, I mean brilliant in compact size & still get 75-80w you get from the larger panel! I scored! You could truly ad them almost anywhere, for my Alpenlite camper it's just PERFECT! Fits perfectly on the sloping cap of camper the (newpowa) brackets are so well made snug clean connection, & nice height to keep them cool & they are secured to full alum frame, & nice all weather waterproof clips! getting 74-80w in full sun cool day60-70f, hot day 82-90f THE SAME! That's the brackets, they are designed for 'their' panels with real engineering smarts, highly recommend their brackets! So 6 months in all is perfection, I'm using Rich solar 20amp mppt ( I had store credit with them) & I use their portables b 4 I got my roof panel on, Rich black glass mono cryst100 watt portables, case with controller & wires another excellent score! 6 months & no change but an increase in watts after 2 months! That's another good sign of a good panel, Newpowa has also increased after the 1st 3 weeks in exact temps & sun, so I have an exact measurement another great thing about California, same weather same temps this time of year over several weeks. Yes Newpowa are fully worth it, I do know '6 gun 12 volt' out of Sparks uses newpowa as of this past year & they recommend so you can't get a better recom. All the best & happy trails to ya all! ****UPDATE AFTER 5BB & NOW 9BB small panels. Both panels at about 60w cool winter day Feb in Calif, so of course I'm disappointed all panels drop off after 6 months it's quit a pisser since I have my new PQ lithium batts 100A 12v LifPo & now 2 panels it's enough for my camper but damn I sure wish panels were so well made they would hold power for years as Home panels do, maybe thats the answer ..SOMEONE MAKE HIGH QUALITY HOME PANELS FOR RV'S! We will pay the extra$$ if it means we don't have to have that lousy feeling of (how much more are they gonna drop?)

I've been experimenting with these for a few weeks now. Have them connected serial into a 1000W grid tied inverter. Even without adjusting for proper angle and laying on the ground so light is only hitting one side I'm getting ~145W. Once I build a DIY tracker I expect to get 175-180W from the pair. And they're very light unlike some of the panels I've worked with.

Loved the price and the power output. Bougt 2 then 3 more after using them for a month. We will see there output in 1 year. The backside power mean nothing

Llego en buenas condiciones y mi opinión por la parte del fabricante; es que viene bien construido y protegido para su transporte.